Explain which planets have seasons and why some planets have none at all.

Earth is the planet that has seasons but the rest do not

Explanation:

Earth's axis is tilted 23.5 degrees, but Venus is only tilted 3 degrees. This lack of tilt means the planet's surfaces receive a uniform amount of the Sun's energy. Though Venus has seasons, there is little change from one to the next. Venus also has a much shorter orbit than Earth, making its seasons very brief.

132

explanation:

12

step 1: initiation

initiation is the beginning of transcription. it occurs when the enzyme rna polymerase binds to a region of a gene called the promoter. this signals the dna to unwind so the enzyme can ‘‘read’’ the bases in one of the dna strands. the enzyme is now ready to make a strand of mrna with a complementary sequence of bases.

step 2: elongation

elongation is the addition of nucleotides to the mrna strand. rna polymerase reads the unwound dna strand and builds the mrna molecule, using complementary base pairs. there is a brief time during this process when the newly formed rna is bound to the unwound dna. during this process, an adenine (a) in the dna binds to an uracil (u) in the rna.

step 3: termination

termination is the ending of transcription, and occurs when rna polymerase crosses a stop (termination) sequence in the gene. the mrna strand is complete, and it detaches from dna.